High Quality Content by WIKIPEDIA articles! Oscar Emmanuel Peterson CC CQ OOnt (August 15, 1925 – December 23, 2007) was a Canadian jazz pianist and composer. He was called the "Maharaja of the keyboard" by Duke Ellington, "O.P." by his friends. He released over 200 recordings, won seven Grammy Awards, and received other numerous awards and honours over the course of his career. He is considered to have been one of the greatest jazz pianists of all time, having played thousands of live concerts to audiences worldwide in a career lasting more than 60 years.